TKDA is 200 person, employee-owned, engineering, architectural, and planning firm. Since 1910, TKDA has built our reputation on integrity and quality in the transportation industry. Developing ITS architecture to enhance transportation projects is among our list of capabilities. Our services related to traffic and vehicle movements include designing traffic signal systems within a SCATS area and variable message signs along the Minnesota trunk highway system. Our expertise in traffic modeling/simulation software is used to analyze both small and large scale vehicular and rail operations, in addition to helping develop highway/railroad crossing conflict resolutions. Contact Mr. Kevin Cullen (cullen.kr@tkda.com) 651/292-4461, www.tkda.com.